The judicial use of a heat gun will change thick epoxy to thin epoxy. Use
slow cure [it's the strongest] and the heat will not accelerate the cure to
fast to get the job together.
Ronald R. Eason Sr.[KRron]
President / CEO
Ph: 816-468-4091
Fax: 816-468-5465
http://www.jrl-engineering.com
Our Attitude Makes The Difference!
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Harold Woods
Sent: Thursday, February 02, 2006 11:07 PM
To: kr...@mylist.net
Subject: KR> mixing different adhesives
Hi Netters.
Larry H was referring to the delamination of Steve Whitman's aircraft fabric
on his wing. Epoxy is not involved in this case.The two adhesives did not
stick well together because one was a nitrate base and the other was a
buterate base. Steve should have known better but may be for what ever
reason , we will never know, he did. Sure they held for 10 years but that
was not good enough.
Epoxy is not really any different. There are many things that I would never
trust with epoxy. One of these is polyester, the regular adhesive
in"regular" boat building fiberglass. They are worse than nitrate/butyrate
bonds.
When it comes to building a plane with epoxy, here I mean a wooden plane,
epoxy is the best. However there are different types of epoxy. Some are thin
and some are thick. If you are joining wood to wood and are using a fluid
epoxy like the West system, be sure first to let the fluid epoxy sink into
the wood then mix cabosil (silica jel) into another batch to thicken it .
apply to the wet wood. Do not over clamp the two. The epoxy now will not run
out of the joint and you will have a good bond.
Other epoxy resins are thick. They will not run out of the joint but they
may not soak too deeply into the wood fibres.
I would trust the West system, properly used to make a wooden plane. I
have used many epoxy system including T-88. I like the West best.
I have been away and I am trying to catch up on my emails, which why I did
not respond sooner.
Regards,
Harold Woods
Orillia, ON. Canada.
haroldwo...@rogers.com
___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html
